ID 原文 译文
58338 第 5 代移动通信系统( 5G) 网络场景下服务功能链的部署是网络功能虚拟化研究中亟待解决的问题，现有部署方法难以在优化时延的同时保证服务功能链部署的可靠性，为此，提出了面向服务质量( QoS) 需求的服务功能链部署模型，并设计了一种基于 QoS 保障的服务功能链动态部署算法. In the fifth generation of mobile communications system ( 5G) ，the deployment of servicefunction chaining( SFC) is a critical issue over network function virtualization scenario. A model of SFCdeployment forquality of service ( QoS) requirements is proposed to solve the problem that the existingmethods cannot achieve the optimization of end-to-end delay and reliability of SFC deployment simultaneously. A dynamic deployment algorithm for SFC with QoS guarantee is designed.
58339 该算法在虚拟网络功能部署阶段通过对网络拓扑和可靠性的感知，采用基于 PageＲank 思想的算法对节点进行评价，以负载均衡和协调链路映射为原则，将虚拟网络功能部署在综合资源能力最大的底层节点上，实现了时延和可靠性的全局优化，并通过选择满足可靠性需求的时延最短路径进行链路映射. The method evaluatesthe nodes based on the approach of PageＲank through the perception of network topology and reliability，on the principles of load balancing and coordination with link mapping，the virtual network function( VNF) is mapped onto the substrate node with the highest comprehensive resource capacity which realzesthe global optimization of delay and reliability in the VNF mapping phase. The shortest path of delay thatmeets the reliability requirements is selected for link mapping.
58340 仿真结果表明，该算法在降低服务功能链端到端时延的同时保证了部署的可靠性，并且提高了请求接受率和资源利用率. The simulation results show that the proposed algorithm can reduce the end-to-end delay and ensure the reliability of SFC，as well as improve therequest acceptance rate and resource utilization.
58341 针对具有能量捕获装置以及可充电电池的无线传感网，为了使无线传感器具有根据可用能量自适应调整数据采样速率的能力，所获得的能量具有随机性，定义了可等价表示信息获取度量的能量不足概率. We consider the wireless senor network which is equipped with an energy harvesting deviceand a rechargeable battery，and the aim is to enable the sensor having the ability of adaptively adjustingthe data sampling rate according to the available energy. Since the stochastic nature of the harvested energy，we define the energy deficiency probability for equivalently characterizing an information acquisitionmetric.
58342 将调节数据采样速率的问题定义为约束优化问题，使数据采样速率最大化，同时将能量不足概率保持在阈值以下. We formulate the problem of adjusting data sampling rate as a constrained optimization problem，maximizing the data sampling rate while keeping the energy deficiency probability below a threshold.
58343 利用经典的大偏差理论估计能量不足概率. Theclassic large deviation theory is invoked for estimating the energy deficiency probability.
58344 实验结果表明，所提出的算法具有自适应能力，既能适应能量动态变化，又能适应信道动态变化，提高了信息采集效率. Our experimentalresults verify that the algorithms proposed have the adaptation capability to accommodate both the energydynamics and the channel-dynamics for improving the information acquisition.
58345 为了提升移动流媒体应用用户的体验质量( QoE) ，提出了基于剩余电量的用户 QoE 模型( PSQM) ，模型参数包括剩余电量、初始延迟、暂停事件、切换事件. In order to improve the quality of experience ( QoE) of mobile streaming media application users，the power state QoE model ( PSQM) based on remained power is proposed. The model parametersinclude remaining power，initial delay，pause event，and swithing event.
58346 在 PSQM 基础上，提出了基于移动设备剩余电量和网络环境的码率控制策略( PBCS) ，避免了客户端不断请求高质量视频片段而不考虑设备剩余电量而影响用户 QoE 的问题. Based on PSQM，the Power-aware Bitrate control strategy ( PBCS) based on the remained power of the mobile device and the networkenvironment is proposed，which avoids the problem that the client continuously requests high-quality video segments without considering the remained power of the device and affects the user QoE.
58347 在移动设备不同电量状态下，PBCS 能够实现视频质量和电量的权衡，提高用户 QoE. PBCS canachieve the trade-off between video quality and power，and improve user QoE.